Results 21 to 30 of about 1,845,376 (254)

Enhancing Electrical Outputs of Piezoelectric Nanogenerators by Controlling the Dielectric Constant of ZnO/PDMS Composite

open access: yesMicromachines, 2021
Structural optimizations of the piezoelectric layer in nanogenerators have been predicted to enhance the output performance in terms of the figure of merit.
Yerkezhan Amangeldinova   +6 more
doaj   +1 more source

Dielectric properties of CaCu3Ti4O12 based multiphased ceramics [PDF]

open access: yes, 2006
A “soft chemistry” method, the coprecipitation, has been used to synthesize the perovskite CaCu3Ti4O12 (CCT). Three main types of materials were obtained for both powders and sintered ceramics: a monophased consisting of the pure CCT phase, a biphased ...
Durand, Bernard   +4 more
core   +1 more source

The Predicted Dielectric Constant of an Amorphous PVDF Changing with Temperature by Molecular Dynamics Simulations

open access: yesInternational Journal of Electrochemical Science, 2018
PVDF, a soft dielectric material, has attracted great attention in the research field of soft smart materials. However, some of the mechanisms for the dielectric and piezoelectric behaviors of PVDF are still not clear.
Taotao Hu, Bingbing Hu, Yabin Yan
doaj   +1 more source

Giant dielectric permittivity in ferroelectric thin films : domain wall ping pong [PDF]

open access: yes, 2015
This study was supported by the National Key Basic Research Program of China (No. 2014CB921004), the National Natural Science Foundation of China (Nos.
Scott, James Floyd   +7 more
core   +1 more source

Permittivity effects of particle agglomeration in ferroelectric ceramic-epoxy composites using finite element modeling

open access: yesAIP Advances, 2018
The size dependence of the dielectric constants of barium titanate or other ferroelectric particles can be explored by embedding particles into an epoxy matrix whose dielectric constant can be measured directly.
Jonas L. Kaufman   +10 more
doaj   +1 more source

Achieving excellent temperature-stable dielectric properties of -based lead-free ceramics via doping

open access: yesJournal of Advanced Dielectrics, 2023
The lead-free ceramics ([Formula: see text])(0.94[Formula: see text][Formula: see text][Formula: see text]TiO3-0.06BiAlO3)-[Formula: see text]AgNbO3 (denoted as BNBTA-[Formula: see text]AN) were synthesized via a solid-state sintering method.
Li-na Liu   +3 more
doaj   +1 more source

Characterization of Terahertz Dielectric Constant and Pore Structure of Hardened Cement Paste with GEM Model

open access: yesTaiyuan Ligong Daxue xuebao, 2023
Purposes A deep understanding of the pore structure of cement paste is important for improving the performance of cement-based materials. Methods In this paper, terahertz time-domain spectroscopy (THz-TDS) system was used to test the terahertz time ...
Wentao ZHANG   +4 more
doaj   +1 more source

MM-PBSA and the Importance of the Dielectric Constant for Kinase Drug Design [PDF]

open access: yes, 2020
Predicting the interactions between a set of small molecules and its target plays a critical role in drug discovery and development. Especially in later stages of the drug design process, when a reduced set of molecules is in focus, reliable and accurate
Melanie, Schneider, Gilles, Labesse
core   +1 more source

Study on soil dielectric constant models: A review

open access: yesGuan'gai paishui xuebao
【Objective】 Soil dielectric constant measures the ability of a soil to transmit electric fields. It is the ratio of the capacitance of a soil sample to the capacitance of air-filled space of the same volume.
XU Xingqian   +4 more
doaj   +1 more source

Dielectric Characterization of Chinese Standard Concrete for Compressive Strength Evaluation

open access: yesApplied Sciences, 2017
Dielectric characterization of concrete is essential for the wireless structural health monitoring (SHM) of concrete structures. Guo Biao (GB) concrete refers to the concrete mixed and cast in accordance with the Chinese standard. Currently, China is the
Kwok L. Chung   +5 more
doaj   +1 more source

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